I think it is c I think that is the answer
The 1856 Presidential campaign was waged in a chaotic environment. The fragmented Democratic Party competed with the fragments of the Whig Party<span> over slavery. The newly formed “</span>Free<span> Soil”, “Opposition”, and “North American” parties competed with the fledgling Republican Party.</span>
Sea explorations were made by many countries centuries ago. These were headed by the European countries long back. The impulses or urges that influenced the explorers are to desire to take hold of other land for territorial expansion.
Another very important thing to consider as well was the trading. One country had to exchange products to another country. Hence, there were need for them to cross the seas.
